APA (7th ed.) Citation

Hepp, G. R., & Bellrose, F. C. (1995). Wood duck: Aix sponsa. American Ornithologists' Union ; The Academy of Natural Sciences.

Chicago Style (17th ed.) Citation

Hepp, Gary R., and Frank C. Bellrose. Wood Duck: Aix Sponsa. Washington, D.C. : Philadelphia, PA: American Ornithologists' Union ; The Academy of Natural Sciences, 1995.

MLA (9th ed.) Citation

Hepp, Gary R., and Frank C. Bellrose. Wood Duck: Aix Sponsa. American Ornithologists' Union ; The Academy of Natural Sciences, 1995.